KR20160036818A - Apparatus for charging battery of hybrid vehicle and method thereof - Google Patents

Apparatus for charging battery of hybrid vehicle and method thereof Download PDF

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KR20160036818A
KR20160036818A KR1020140128905A KR20140128905A KR20160036818A KR 20160036818 A KR20160036818 A KR 20160036818A KR 1020140128905 A KR1020140128905 A KR 1020140128905A KR 20140128905 A KR20140128905 A KR 20140128905A KR 20160036818 A KR20160036818 A KR 20160036818A
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battery
charging
voltage
output command
time
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KR1020140128905A
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KR102042124B1 (en
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차지완
강구배
윤길영
김진호
임성엽
임재상
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현대자동차주식회사
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/28Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00Control systems specially adapted for hybrid vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/40Drive Train control parameters
    • B60L2240/54Drive Train control parameters related to batteries
    • B60L2240/547Voltage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00Type of vehicle
    • B60Y2200/90Vehicles comprising electric prime movers
    • B60Y2200/92Hybrid vehicles
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The present invention relates to an apparatus for charging a battery of a hybrid vehicle and a method thereof, and more specifically, an apparatus for charging a battery of a hybrid vehicle and a method thereof, changing an output command based on an output table in accordance with a time and the voltage generated within a range satisfying the potential of a hybrid starter-generator (HSG) (an allowable temperature and a continuous allowable current) in a hybrid vehicle using a transmission mounted electric device (TMED) method, thereby reducing the time taken to completely charge the battery. To this end, the apparatus for charging a battery of a hybrid vehicle comprises a storage part, a voltage measurement part, a charger part and a charge control part. The storage part stores a table where an output command in accordance with a time and a voltage generated at an allowable temperature of the charge part and within the range of continuous allowable current is recorded. The voltage measurement part periodically measures the voltage of the battery. The charge part charges the battery under the control of the charging control part. The charge control unit determines an output command corresponding to a charge time and the voltage of the battery, which is measured by the voltage measurement part, based on the output command table.

Description

하이브리드 차량의 배터리 충전 장치 및 그 방법{APPARATUS FOR CHARGING BATTERY OF HYBRID VEHICLE AND METHOD THEREOF}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a battery charging apparatus for a hybrid vehicle,

본 발명은 하이브리드 차량의 배터리 충전 장치 및 그 방법에 관한 것으로, 더욱 상세하게는 TMED(Transmission Mounted Electric Device) 방식의 하이브리드 차량에서 HSG(Hybrid Starter-Generator)의 포텐셜(허용온도, 연속허용전류)을 고려하여 배터리의 충전 완료시간을 단축하는 기술에 관한 것이다.More particularly, the present invention relates to an apparatus and method for charging a battery of a hybrid vehicle, and more particularly, to a hybrid vehicle having a TMED (Transmission Mounted Electric Device) hybrid vehicle and a hybrid starter-generator (HSG) And to shorten the charging completion time of the battery.

일반적으로, 넓은 의미의 하이브리드 차량은 서로 다른 두 종류 이상의 동력원을 효율적으로 조합하여 구동력을 얻는 차량을 의미하나, 대부분은 연료를 사용하여 구동력을 얻는 엔진과 배터리의 전력으로 구동되는 전기모터에 의해 구동력을 얻는 차량을 의미하며, 이를 하이브리드 전기 차량(Hybrid Electric Vehicle, HEV)이라 한다.In general, a hybrid vehicle in a broad sense means a vehicle that combines two or more different kinds of power sources efficiently to obtain a driving force, but most of them are driven by an engine that obtains a driving force by using fuel and an electric motor that is driven by the power of the battery. Which is referred to as a hybrid electric vehicle (HEV).

하이브리드 전기 차량(이하, 하이브리드 차량으로 약칭함)은 엔진과 전기모터를 동력원으로 하여 다양한 구조를 형성할 수 있는데, 엔진의 기계적 에너지와 배터리의 전기에너지를 동시에 사용할 수 있어 에너지를 효율적으로 사용할 수 있다는 장점 때문에 승용차 등에 널리 채택되고 있다.A hybrid electric vehicle (hereinafter abbreviated as a hybrid vehicle) can form a variety of structures using an engine and an electric motor as power sources. Energy can be efficiently used because mechanical energy of the engine and electric energy of the battery can be used simultaneously. It has been widely adopted for passenger cars because of its advantages.

이러한 하이브리드 차량은 EV 모드 주행중 고전압배터리가 방전되어 SOC(State Of Charge)가 기준치 이하가 되면, 상위 제어기로부터 배터리 충전지령을 받아 HSG(Hybrid Starter-Generator)를 이용하여 엔진을 시동하고, HSG의 연속적인 회생출력을 통해 엔진으로부터 발생한 기계에너지를 고전압배터리의 전기에너지로 변환하여 고전압배터리의 SOC를 정상레벨로 회복시킨다.When the high-voltage battery is discharged and the SOC (State Of Charge) becomes lower than the reference value, the hybrid vehicle receives the battery charging command from the host controller and starts the engine using the HSG (Hybrid Starter-Generator) The regenerative power output converts the mechanical energy generated by the engine into electrical energy of the high voltage battery to restore the SOC of the high voltage battery to a normal level.

이때, HSG의 연속 출력지령의 레벨을 결정하는 요인은 HSG의 허용온도와 연속허용전류이다. 즉, HSG의 허용온도는 냉각수 유입 최고온도와 HSG 과온보호 온도와의 차이로 결정하게 되며, 연속허용전류는 HPCU(Hybrid Power Control Unit) 내부의 인버터 전류용량 및 실제 전류가 흐르는 AC/DC 케이블과 커넥터의 용량으로 결정된다.At this time, the factor determining the level of the continuous output command of the HSG is the allowable temperature of the HSG and the continuous allowable current. That is, the permissible temperature of HSG is determined by the difference between the maximum temperature of cooling water inlet and the protection temperature of HSG, and the allowable current is AC / DC cable in which the inverter current capacity and actual current flow in HPCU (Hybrid Power Control Unit) And is determined by the capacity of the connector.

참고로, 고전압배터리의 충전이 시작되면 HSG에 전류가 인가되고 내부온도는 상승한다. 출력지령이 크면 인가전류의 크기가 커지게 되고 포화온도에 도달하는 시간은 짧아지게 되지만, 결과적으로 가능한 연속 출력시간은 짧아진다.For reference, when charging of the high voltage battery starts, current is applied to the HSG and the internal temperature rises. If the output command is large, the magnitude of the applied current becomes large and the time to reach the saturation temperature becomes short, but the possible continuous output time becomes short.

종래의 하이브리드 차량은 고정된 출력지령 값(6kw)을 이용하여 약 40분에 걸쳐 고전압배터리를 충전시킨다. 이는 가장 낮은 SOC 충전레벨 및 악의 운전조건(등판운전)에서 SOC가 정상 레벨로 복귀하는데 필요한 출력지령 값으로서, 허용온도와 허용전류 조건을 만족하는 범위 내에서 결정된다. 이러한 악의 운전조건이 반영된 고정 출력지령은 HSG를 이용한 충전전략의 모든 조건에서 동일하게 적용된다.The conventional hybrid vehicle uses a fixed output command value (6 kw) to charge the high voltage battery over about 40 minutes. This is an output command value required for returning the SOC to the normal level in the lowest SOC charge level and malfunction operating condition (back-up operation), and is determined within a range that satisfies the allowable temperature and the allowable current condition. The fixed output command reflecting such malicious operating conditions is applied in all the conditions of charging strategy using HSG.

하지만, 차량 주행중 상기와 같은 악의 운전조건이 반영된 운전상황은 빈도 수가 극히 적기 때문에, 모든 운전조건에서 같은 방식으로 고전압배터리를 충전하는 것은 비효율적이며, 결정적으로 배터리의 충전 완료시간을 과다하게 요구하는 문제점이 있다.However, since the number of operating states reflecting such malfunctioning conditions is extremely small during the driving of the vehicle, it is inefficient to charge the high-voltage battery in the same manner under all the driving conditions, and the battery charging time .

상기와 같은 종래 기술의 문제점을 해결하기 위하여, 본 발명은 TMED 방식의 하이브리드 차량에서 HSG의 포텐셜(허용온도, 연속허용전류)을 만족하는 범위 내에서 생성된 전압과 시간에 따른 출력 테이블을 기반으로 출력지령을 가변함으로써, 배터리의 충전 완료시간을 단축할 수 있는 하이브리드 차량의 배터리 충전 장치 및 그 방법을 제공하는데 그 목적이 있다.In order to solve the problems of the related art as described above, the present invention is based on a voltage table generated within a range satisfying the potential (allowable temperature, continuous allowable current) of the HSG in a TMED hybrid vehicle, And an object thereof is to provide a battery charging apparatus and method of a hybrid vehicle capable of shortening the charging completion time of a battery by varying an output command.

본 발명의 목적들은 이상에서 언급한 목적으로 제한되지 않으며, 언급되지 않은 본 발명의 다른 목적 및 장점들은 하기의 설명에 의해서 이해될 수 있으며, 본 발명의 실시예에 의해 보다 분명하게 알게 될 것이다. 또한, 본 발명의 목적 및 장점들은 특허 청구 범위에 나타낸 수단 및 그 조합에 의해 실현될 수 있음을 쉽게 알 수 있을 것이다.The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

상기 목적을 달성하기 위한 본 발명의 장치는, 하이브리드 차량의 배터리 충전 장치에 있어서, 충전부의 허용온도 및 연속허용전류 범위 내에서 생성한 전압과 시간에 따른 출력지령이 기록된 테이블을 저장하는 저장부; 주기적으로 배터리의 전압을 측정하는 전압 측정부; 충전 제어부의 제어하에 상기 배터리를 충전하는 상기 충전부; 및 상기 출력지령 테이블을 기반으로, 충전시간과 상기 전압 측정부에 의해 측정된 배터리의 전압에 상응하는 출력지령을 결정하는 상기 충전 제어부를 포함한다.According to an aspect of the present invention, there is provided an apparatus for charging a battery of a hybrid vehicle, comprising: a storage unit for storing a table in which an output command corresponding to a voltage and a time generated within a permissible temperature and a continuous allowable current range of a charging unit is recorded; ; A voltage measuring unit periodically measuring a voltage of the battery; The charging unit charging the battery under the control of the charging control unit; And the charging controller for determining an output command corresponding to the charging time and the voltage of the battery measured by the voltage measuring unit based on the output command table.

또한 상기 목적을 달성하기 위한 본 발명의 방법은, 하이브리드 차량의 배터리 충전 방법에 있어서, 저장부가 충전부의 허용온도 및 연속허용전류 범위 내에서 생성한 전압과 시간에 따른 출력지령이 기록된 테이블을 저장하는 단계; 전압 측정부가 주기적으로 배터리의 전압을 측정하는 단계; 충전 제어부가 상기 출력지령 테이블을 기반으로, 충전시간과 상기 배터리의 전압에 상응하는 출력지령을 결정하는 단계; 및 상기 충전부가 상기 결정된 출력지령을 기반으로 상기 배터리를 충전하는 단계를 포함한다.According to another aspect of the present invention, there is provided a method for charging a battery of a hybrid vehicle, the method comprising the steps of: storing a table in which an output command according to voltage and time generated within a permissible temperature and a continuous allowable current range of a charging unit, ; Measuring a voltage of the battery periodically by the voltage measuring unit; Determining an output command corresponding to the charging time and the voltage of the battery based on the output command table; And charging the battery based on the determined output command by the charging unit.

상기와 같은 본 발명은, TMED 방식의 하이브리드 차량에서 HSG의 포텐셜(허용온도, 연속허용전류)을 만족하는 범위 내에서 생성된 전압과 시간에 따른 출력 테이블을 기반으로 출력지령을 가변함으로써, 배터리의 충전 완료시간을 단축할 수 있는 효과가 있다.According to the present invention as described above, the output command is varied based on the voltage and the output table according to the time within the range satisfying the potential (allowable temperature, continuous allowable current) of the HSG in the TMED hybrid vehicle, The charging completion time can be shortened.

또한, 본 발명은 배터리의 충전 완료시간을 단축함으로써, TMED 방식의 하이브리드 차량에서 EV 주행모드의 비율을 높여 연비를 향상시킬 수 있는 효과가 있다.Further, the present invention has the effect of improving the fuel efficiency by increasing the ratio of the EV driving mode in the TMED hybrid vehicle by shortening the charging completion time of the battery.

또한, 본 발명은 EV 주행모드의 비율을 높임으로써, 엔진의 가동시간을 줄이게 되어 차량 운전성(정숙성)을 개선할 수 있는 효과가 있다.Further, the present invention reduces the running time of the engine by increasing the ratio of the EV running mode, thereby improving the vehicle operability (quietness).

또한, 본 발명은 HSG의 출력 포텐셜을 최대한 활용함으로써 불필요한 설계마진을 없앨 수 있는 효과가 있다.Further, the present invention has the effect of eliminating unnecessary design margin by maximizing the output potential of the HSG.

도 1 은 본 발명에 따른 하이브리드 차량의 배터리 충전 장치에 대한 일실시예 구성도,
도 2 는 본 발명에 따른 전압과 시간에 따른 출력지령을 나타내는 일예시도,
도 3 은 본 발명에 따른 하이브리드 차량의 배터리 충전 방법에 대한 일실시예 흐름도이다.
FIG. 1 is a configuration diagram of an embodiment of a battery charging apparatus for a hybrid vehicle according to the present invention.
FIG. 2 is an example showing an output command according to voltage and time according to the present invention,
3 is a flowchart of an embodiment of a method for charging a battery of a hybrid vehicle according to the present invention.

상술한 목적, 특징 및 장점은 첨부된 도면을 참조하여 상세하게 후술되어 있는 상세한 설명을 통하여 보다 명확해 질 것이며, 그에 따라 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 본 발명의 기술적 사상을 용이하게 실시할 수 있을 것이다. 또한, 본 발명을 설명함에 있어서 본 발명과 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에 그 상세한 설명을 생략하기로 한다. 이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다.BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It can be easily carried out. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 은 본 발명에 따른 하이브리드 차량의 배터리 충전 장치에 대한 일실시예 구성도이다.1 is a block diagram of a battery charging apparatus for a hybrid vehicle according to an embodiment of the present invention.

도 1에 도시된 바와 같이, 본 발명에 따른 하이브리드 차량의 배터리 충전 장치는, 배터리(10), 저장부(20), 전압 측정부(30), 충전부(40), 및 충전 제어부(50)를 포함한다.1, a battery charging apparatus for a hybrid vehicle according to the present invention includes a battery 10, a storage unit 20, a voltage measuring unit 30, a charging unit 40, and a charging control unit 50 .

상기 각 구성요소들에 대해 살펴보면, 먼저 배터리(10)는 하이브리드 차량을 구동시키기 위한 모터에 전원을 공급하는 고전압배터리로서, EV 주행모드시 상기 모터에 전원을 공급한다.The battery 10 is a high voltage battery that supplies power to the motor for driving the hybrid vehicle, and supplies power to the motor in the EV driving mode.

다음으로, 저장부(20)는 전압과 시간에 따른 출력지령(전력)이 기록된 테이블을 저장한다. 이러한 테이블은 TMED 방식의 하이브리드 차량에서 HSG의 포텐셜(허용온도, 연속허용전류)을 만족하는 범위 내에서 생성된 전압과 시간에 따른 출력 테이블로서, 일례로 하기의 [표 1]과 같다. 하기의 [표 1]은, 도 2에 도시된 전압과 시간에 따른 출력 맵(그래프)을 테이블화 한 것이다.Next, the storage unit 20 stores a table in which an output command (power) according to voltage and time is recorded. This table is an output table according to the voltage and time generated within the range satisfying the potential (allowable temperature, continuous allowable current) of the HSG in the hybrid vehicle of the TMED type, as shown in Table 1 below. The following [Table 1] is a table of the output map (graph) according to the voltage and time shown in Fig.

[표 1][Table 1]

Figure pat00001
Figure pat00001

여기서, 전압은 배터리(10)의 전압을 의미한다.Here, the voltage means the voltage of the battery 10.

다음으로, 전압 측정부(30)는 일례로 BMS(Battery Management System)에 의해 구현될 수 있으며, 주기적으로 배터리(10)의 전압을 측정한 후 충전 제어부(50)에 알린다.Next, the voltage measuring unit 30 may be implemented by a BMS (Battery Management System), for example, and periodically notifies the charge control unit 50 of the voltage of the battery 10.

다음으로, 충전부(40)는 HSG(Hybrid Starter-Generator)에 의해 구현될 수 있으며, 충전 제어부(50)의 제어하에 배터리(20)를 충전한다.Next, the charging unit 40 may be implemented by a HSG (Hybrid Starter-Generator) and charges the battery 20 under the control of the charge control unit 50.

다음으로, 충전 제어부(50)는 저장부(10)에 저장되어 있는 출력 테이블을 기반으로 충전부(40)를 제어한다. 즉, 충전 제어부(50)는 출력 테이블을 기반으로, 배터리(10)의 충전시간(충전 시작시간부터 현재까지 소요된 시간, 이하 충전시간이라 함)과 전압 측정부(30)를 통해 획득한 배터리(10)의 전압에 상응하는 출력지령(전력 값)을 충전부(40)로 전달한다. 그러면, 충전부(40)는 충전 제어부(50)로부터 전달받은 충전지령을 기반으로 배터리(10)를 충전한다.Next, the charge control unit 50 controls the charging unit 40 based on the output table stored in the storage unit 10. That is, the charge control unit 50 calculates the charging time (the time taken from the charging start time to the present time, hereinafter referred to as the charging time) of the battery 10 and the battery (Power value) corresponding to the voltage of the battery 10 to the charging unit 40. Then, the charging unit 40 charges the battery 10 based on the charging command received from the charging control unit 50.

이러한 충전 제어부(50)는 주기적으로 배터리(10)의 충전시간과 전압 측정부(30)를 통해 획득한 배터리(10)의 전압을 체크하여 출력지령을 변경한다.The charge control unit 50 periodically checks the charge time of the battery 10 and the voltage of the battery 10 acquired through the voltage measurement unit 30 to change the output command.

이하, 도 2를 참조하여 충전 제어부(50)의 동작에 대해 상세히 살펴보기로 한다.Hereinafter, the operation of the charge control unit 50 will be described in detail with reference to FIG.

도 2 는 본 발명에 따른 전압과 시간에 따른 출력지령을 나타내는 일예시도이다.2 is a diagram illustrating an output command according to voltage and time according to the present invention.

도 2에서, '210'은 종래의 방식인 고정 출력지령(6kw)을 나타내는 그래프로서, 종래의 방식으로 충전하는 경우 배터리 충전시간(완전 충전 시간)은 40분이 소요되는 것을 알 수 있다.Referring to FIG. 2, '210' is a graph showing a fixed output command (6 kw), which is a conventional method. It can be seen that the battery charging time (full charging time) is 40 minutes when charging is performed by the conventional method.

'220'은 배터리의 전압이 190V인 경우에 시간에 따른 출력지령을 나타내고, '230'은 배터리의 전압이 230V인 경우에 시간에 따른 출력지령을 나타내며, '240'은 배터리의 전압이 270V인 경우에 시간에 따른 출력지령을 나타낸다. 이때, '220'의 그래프에 따른 출력지령으로 충전하면 배터리의 충전시간은 40분이 소요되고, '230'의 그래프에 따른 출력지령으로 충전하면 30분이 소요되며, '240'의 그래프에 따른 출력지령으로 충전하면 20분이 소요된다.'220' indicates an output command according to time when the battery voltage is 190 V, '230' indicates an output command according to time when the battery voltage is 230 V, '240' And indicates an output command in accordance with time. In this case, when the battery is charged with the output command according to the graph of '220', the battery requires a charging time of 40 minutes. When charging with the output command according to the graph of '230', charging takes 30 minutes. It takes 20 minutes to charge.

본 발명은 배터리의 충전 시간을 더욱더 단축하기 위해 충전 시작시간부터 현재까지 소요된 시간과 배터리의 전압을 기반으로 출력지령을 결정한다.In order to further shorten the charging time of the battery, the present invention determines an output command based on the time taken from the charging start time to the present time and the voltage of the battery.

예를 들어, 최초 충전시 배터리의 전압이 190V라 하면, 충전 제어부(50)는 11.2kw의 출력지령을 충전부(40)로 전달한다.For example, if the voltage of the battery at the time of initial charging is 190 V, the charge control unit 50 delivers an output command of 11.2 kW to the charger 40.

2.5분 후, 배터리의 전압이 230V라 하면, 충전 제어부(50)는 8.9kw의 출력지령을 충전부(40)로 전달한다.After 2.5 minutes, if the voltage of the battery is 230V, the charge controller 50 delivers an output command of 8.9kw to the charger 40. [

10분 후, 배터리의 전압이 270V라 하면, 충전 제어부(50)는 8.2kw의 출력지령을 충전부(40)로 전달한다.After 10 minutes, if the voltage of the battery is 270V, the charge control unit 50 delivers an output command of 8.2kw to the charging unit 40. [

이러한 과정을 통해 15분 후에 배터리의 충전이 완료되는 것을 알 수 있다. 결과적으로, 종래의 방식에 비해 25분이나 충전시간을 단축할 수 있다.Through this process, it can be seen that charging of the battery is completed after 15 minutes. As a result, the charging time can be shortened by 25 minutes compared with the conventional method.

도 3 은 본 발명에 따른 하이브리드 차량의 배터리 충전 방법에 대한 일실시예 흐름도이다.3 is a flowchart of an embodiment of a method for charging a battery of a hybrid vehicle according to the present invention.

먼저, 저장부(10)가 충전부(40)의 허용온도 및 연속허용전류 범위 내에서 생성한 전압과 시간에 따른 출력지령이 기록된 테이블을 저장한다(301).First, the storage unit 10 stores a table in which the output command according to the voltage and the time generated within the allowable temperature and the continuous allowable current range of the charging unit 40 is recorded (301).

이후, 전압 측정부(30)가 주기적으로 배터리(20)의 전압을 측정한다(302).Thereafter, the voltage measuring unit 30 periodically measures the voltage of the battery 20 (302).

이후, 충전 제어부(50)가 상기 출력지령 테이블을 기반으로, 충전시간과 상기 배터리의 전압에 상응하는 출력지령을 결정한다(303).Then, the charge controller 50 determines an output command corresponding to the charge time and the voltage of the battery based on the output command table (303).

이후, 충전부(40)가 충전 제어부(50)에 의해 결정된 출력지령을 기반으로 배터리(20)를 충전한다(304).Thereafter, the charging unit 40 charges the battery 20 based on the output command determined by the charging control unit 50 (304).

한편, 전술한 바와 같은 본 발명의 방법은 컴퓨터 프로그램으로 작성이 가능하다. 그리고 상기 프로그램을 구성하는 코드 및 코드 세그먼트는 당해 분야의 컴퓨터 프로그래머에 의하여 용이하게 추론될 수 있다. 또한, 상기 작성된 프로그램은 컴퓨터가 읽을 수 있는 기록매체(정보저장매체)에 저장되고, 컴퓨터에 의하여 판독되고 실행됨으로써 본 발명의 방법을 구현한다. 그리고 상기 기록매체는 컴퓨터가 판독할 수 있는 모든 형태의 기록매체를 포함한다.Meanwhile, the method of the present invention as described above can be written in a computer program. And the code and code segments constituting the program can be easily deduced by a computer programmer in the field. In addition, the created program is stored in a computer-readable recording medium (information storage medium), and is read and executed by a computer to implement the method of the present invention. And the recording medium includes all types of recording media readable by a computer.

이상에서 설명한 본 발명은, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 있어 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능하므로 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니다.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings.

10 : 저장부
20 : 배터리
30 : 전압 측정부
40 : 충전부
50 : 충전 제어부
10:
20: Battery
30: Voltage measuring unit
40:
50:

Claims (6)

충전부의 허용온도 및 연속허용전류 범위 내에서 생성한 전압과 시간에 따른 출력지령이 기록된 테이블을 저장하는 저장부;
주기적으로 배터리의 전압을 측정하는 전압 측정부;
충전 제어부의 제어하에 상기 배터리를 충전하는 상기 충전부; 및
상기 출력지령 테이블을 기반으로, 충전시간과 상기 전압 측정부에 의해 측정된 배터리의 전압에 상응하는 출력지령을 결정하는 상기 충전 제어부
를 포함하는 하이브리드 차량의 배터리 충전 장치.
A storage unit for storing a table in which an output command according to a voltage and a time generated within a permissible temperature and a continuous allowable current range of the charging unit is recorded;
A voltage measuring unit periodically measuring a voltage of the battery;
The charging unit charging the battery under the control of the charging control unit; And
And a charge control unit for determining an output command corresponding to a charging time and a voltage of the battery measured by the voltage measuring unit, based on the output command table,
And a battery charger for charging the battery.
제 1 항에 있어서,
상기 충전 제어부는,
주기적으로 충전시간과 배터리의 전압을 체크하여 출력지령을 결정하는 것을 특징으로 하는 하이브리드 차량의 배터리 충전 장치.
The method according to claim 1,
Wherein the charge control unit comprises:
Wherein the battery charging device periodically checks the charging time and the voltage of the battery to determine an output command.
제 1 항에 있어서,
상기 충전 제어부는,
충전시간이 경과할수록 낮은 전력의 출력지령으로 상기 충전부를 제어하는 것을 특징으로 하는 하이브리드 차량의 배터리 충전 장치.
The method according to claim 1,
Wherein the charge control unit comprises:
And controls the charging unit with a low power output command as the charging time elapses.
저장부가 충전부의 허용온도 및 연속허용전류 범위 내에서 생성한 전압과 시간에 따른 출력지령이 기록된 테이블을 저장하는 단계;
전압 측정부가 주기적으로 배터리의 전압을 측정하는 단계;
충전 제어부가 상기 출력지령 테이블을 기반으로, 충전시간과 상기 배터리의 전압에 상응하는 출력지령을 결정하는 단계; 및
상기 충전부가 상기 결정된 출력지령을 기반으로 상기 배터리를 충전하는 단계
를 포함하는 하이브리드 차량의 배터리 충전 방법.
Storing a table in which an output command according to a voltage and a time generated within a permissible temperature and a consecutive current range of the storage unit is stored;
Measuring a voltage of the battery periodically by the voltage measuring unit;
Determining an output command corresponding to the charging time and the voltage of the battery based on the output command table; And
Wherein the charging unit charges the battery based on the determined output command
And charging the battery.
제 4 항에 있어서,
상기 출력지령 결정 단계는,
주기적으로 충전시간과 배터리의 전압을 체크하여 출력지령을 결정하는 것을 특징으로 하는 하이브리드 차량의 배터리 충전 방법.
5. The method of claim 4,
Wherein the output instruction determining step comprises:
And the output command is determined by periodically checking the charging time and the voltage of the battery.
제 4 항에 있어서,
상기 출력 지령은,
충전시간이 경과할수록 낮은 전력 값을 갖는 것을 특징으로 하는 하이브리드 차량의 배터리 충전 방법.
5. The method of claim 4,
The output command includes:
And has a lower power value as the charging time elapses.
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WO2007006121A1 (en) * 2005-04-20 2007-01-18 Mountain Power Inc. Detecting the state-of-charge of a lithium ion battery in a hybrid electric vehicle
JP2007124750A (en) * 2005-10-26 2007-05-17 Sanyo Electric Co Ltd Charge control method of battery
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